Type-writing machine.



B. A. BROOKS. vTYPE WRITING MAGHINE. APPLIOATIONI'ILED AUG. 22, 1911.

Patent-,ed May 7, 1912.

s snnETs-snnpfr 1.

l-IISAT T DEINE v l APPLICATION FILED AUG. 22, 191.1.

B. A. BROOKS, TYPE WRITING MACHINE.

Patented May 7, 1912.

5 lSHEETS-SHEET 2.

i; lfm/ENTER.

HIATTDRNEY B. A. BROOKS.

` TYPE'. WRITING MACHINE. PPLmATIoN Pimm 111111.22, 1911.

1,025,943. Patented May 7, 1912.

Quad o ,ty 1 a' E; a L" WITNEEEES. INVENTDR.

HEIATTURNEY B. A. BROOKS. .TYPE WRITING MACHINE.

. APPLIUATION FILED AUG. 22, 1911. 1,025,943.'

Patenteamay '7, 1912; l

5 SHEETS-SHEET 4.

WITNESEEE'.' I NvEgN-rnl.

\ B. A. BROOKS.

`TYPE WRITING MACHINE.

APPLICATION FILED AUG 22,191L

` Patented' May 7, 1912.`

5 SHEETS-SHEET 5.

WITNE'I'EE: INVENTR':

" HIEATTUFQMEV UNITED jsTATEs PATENT OFFICE,

BYaoN A. BROOKS, or NEW YORK, N. Y.,

AssieNion, BY MEsNB ASSIGNMENTS, To

UNION TYPEWRITER COMPANY, OF JERSEY CITY, NEW JERSEY, A CORPORATION or. NBW JERSEY.

TYPE-WRITING MACHINE.

chines, of whichthe followmg is a specicat-ion..

' My invention relates especially to elec-Q trically operated typewriters and has -for its object to reduce the labor of operating the machine by applying electric power to operate the escapement, the case shifting mechanism and the carriage returna'nd line spacing mechanisms. i

To the above and other ends my invention consists in the features of construction, combinations of devices and arrangements of parts hereinafter described and particularly pointed out in the claims.

As I est-imatef`it, thepower required for, operatingthe printing key levers is about equally divided between the key lever restoring springv and t-he `associate type bar on the one hand and the4 escapement and its spring on the other; andl accordingly by actuating the. escapement electrically the labor of operating the printing keys is reduced about one-half.. At the same time,

the escapement operates more quickly'and being released automatically at the end of a. key stroke, the effect. of the escapement spring is obtained to restore the print-ing key, this action being the same whether the key -is operated slowly or quickly or even if it be held down. Further, the weight of the carriage does not materiallyaHect the f speed of'operation. The main spring and the escapement spring can be put under` any desired tension for quickening the operation withoutretarding the key lever. In order to accomplish thls result the universal bar pendentl is constructed to have a slight degree of' lost motionso that it may be moved indey and the powerv necessary to be appliedI by the operator to the escapement devlces proper in order to actuate them is 'practically negligible.'

In carrying out my invention a device which I call a 'tripper is connected to .a key controlled universal bar to effect a contact to close lthe electric circuit through a Specification of Letters Patent. Application led `August 22, 1911.

serial No. 645,350.

solenoid, the solenoid being thereby energized and operating the rock shaft which supports the universal b'ar of the Remington No. 10 typewriting machine, to which 'my invention is shown as applied. When the tripper has closed the circuit by bringing the contact points together and Athe movement of the universal bar is continued ,it automatically trips 'off and breaks the circuit, thus bringing the escapement re'- storing springinto action. The tripping ils'eifected directly by the key lever acting on the universal'bar and the restoring spring does not aiectthe key lever until t-he type bar has nearly reached vthe platen,l when said spring comes into action. I regard the provision of 'a tripping device to close the electric circuit as essential, since otherwise the circuit would remain :closed as long as the key washeld down Vand when the key was released there wouldl ,be a tendency for the circuit 'to close again, causingrepeated spacing movements of the carriage.

In connect-ion with the mechanism, I provide a solenoid which is energized y immediately the 'depression on the shift key-is begun, the core of the solenoid acting to shift the platen. This will `remain in its shifted position afterr the key has been released until a character is printed by operating one of the printing keys, when the shifting mechanism -will be automatically released. To effect this result a hook is provided which coperates on the shift mechanism to hold the platen in its shifted position until said printing key is operated, whereupon i the hook is automatically released, the release being effected by the operation of the aforesaid rock shaft. The construction is such that no matter how quickly or lightly the shift key is depressed the platen or shiftable element is brought into posit-ionto print a capital letter and instantly locked, no additional manualforce being required to depress the shift `key beynd the initial, slight depression thereof. A tripper like thateniployed for the escapement mechanism may also be employed with the shifting mechanism to prevent a faulty7 operation of' the shift mechanism by tlfe maintenance of the shift key in depressed position during the printing of more than onelcharacter. A solenoidal magnet is also platen 'shifting Patentediray 7, 19,12.

employed to return the carriage rightward to begin new lines of writ-ing and concurrently to rotate the platen for line spacing.

In this connection a key in the keyboard is provided to operate the solenoid, said key, when depressed, closing the circuit and ener- ,Y gizinglthe solenoid which has its armature connected to 'a cam surface or fuse, the

f two-levers and alink,"the second leverbeing latter in turn being connected to th" carriagethrougl'ia train of devices comprising in turn connected to the regular line spacing pawl.

ated 'the poweraof the magnet istapplied' directly to the second, :flevei'j which tends, through its connections, to turn or rotate the platen; but preferably the Ypower is not suilicient` to accomplish this .result and accordingly the carriage will be returned to the right before the platen is rot-ated. To limit the returning movement an adjustable stop is introduced in the train of connectionsbetween the second lever and the line spacing pawl, said stop co-acting with a fixed abut-nient on the frame ofthe may chine. Theinomentum due to this co-action will effect the rotation of the platen, the

yshock due tp said co-action being absorbed in rotating'l'the platen. The adjustable stop. is setl to correspond with the regular adjustable margin stop and so that it will con- I'tact .with the fixed abut-ment about two described in connection with the accomspaces before thecarriage is at the end of its movement, thus insuring rotation of the platen before the end of the movement. I

My invention will be more particularly panying drawings, whereinshown in the latter ligure and showing the locking devices as they are in the. course of the unlocking operation. Fig. 6 '1s a front elevation partly in section of portions of the platenV shifting ,mechanism Fig. 7 is a` fragmentary` side; elevation partly in section showingportions of the line spacingnicchanism. vFig 8 is a side elevation partly'in sect-ionl showing portions of' the electrical devices connected with the escapemenlf mechanism. Fig. 9 is a diagram 'of the electricalconnections.

The construction' is'such thatj, when the carriage-returning key is operrosas/is Referring especially to Figs. 1 to 3 of the drawings, the main frame of the machine is shown as comprising a base 1`, corner posts 2 and a top plate 3. Track-ways 4' fixed above the top plate coperate through antifriction balls 5 with the front bar 6 and rear bar 7 of arectangular truck which further comprises end bars 8. Links 9 connect to the tr ck a shiftable platen frame comprising e` d bars 10"a'nd a cross bai. 11. J ournaled in the end bars 10 is an axle 12 supporting a rotaryplaten 13. operatively connected with the right-hand e'nd of the platen isy a line spacing ratchet wheel 14 (Figs. 2 and 7) with which is associated a line spacing pawl 15, said pawl being pivvotally supported at 16 on an arm 17 bearing on the axle `12.' The ordinary line spacing devices further comprise a link 18 connecting the pawl 15 with a bell crank lever 19,

said lever being .nnected by a link 2O with a crank arm 2 fast on` a rock shaft 22 which is journaled in a bearing 23 on the right-hand end bar 8 and s provided with a andle;or finger iece 24 which may be opl erated to engage t e pawl 15 to line s ace the platen and also to restore from le t to right the` platen and platen carriage comprisiig the truck and the rplaten frame. The platen frame is shiftable on the truck to change casethrough devices comprising ashift rodor track 25 (Fig. 1) on which bears a wheel or roller 26 journaled on the cross' bar 11. The rod 25 is comprised in a shiftable frame which further includes uprights 27 and a connecting cross bar 28 from the ends of which depend arms 29'each of which is pivotally connected at 30 with the rear armof a lever 31. The levers 31, as best shown in Fig. 6, are secured to a rock shaft 32 near its ends, said rock shaft tak- -ing bearings in the sides of the base 1. The

arms ofthe levers 31, forward of the rock shaft 32, have riveted tothem at 33 a U- shaped plate 34, the late 34 and the arms 31 constituting in e ect a single member. Pivoted on screw studsl35 to each side of the member 34 are forwardly extending levers 36 each terminating in a shift key 37. A leaf spring 38 is screwed at its middle to the bottom of the member 34, the ends of said spring curving upward and underlyin the levers 36. A screw 39 coperates wit the right-hand end of the spring 38 to stiffen the same; but the usual correspondin'g screw at the left is dispensed with. 'A restoring spring- 38a is connected to the member`34- (Fig.,6). -The construct-ion is .such that the shift keys 37 are yeldingly connected with the platen shifting frame.

Pivoted at 40 to the left-hand lever 36 is an upright spring-pressed lever 41 provided with a finger p1ece^`42 and terminating at lits lower end in a hook 43 which is adapted l to coperate with a xed abutment -or bracket 44 to lock the shift frame in opeaf spectively are securedby screws 79 to-a @fiber or the like (Figs- 1 and l3). The plate 80 on which thecontacts are mounted is vsetive position so as to maintain theplaten in upper case position. When one of the keys 37 is depressedvit operates to turn the rock' shaft 32 and raise the platen shifting frame which operates to move upward the platen across the machine above the key levers frame 10, 11 and platen, this shifting movement of the platen and platen frame not affecting the truck 6, 7, 8. l The letter spacing movements of the platen and the platen carriage are-controlled by devices comprising a feed rack 45 secured to. arms 46 pivoted on the truck bar 7. Said rack 45 is normally maintained in spring-pressed relationship with a feed pinion 47 which is operatively connected with toothed escapement wheels 48 and 49. Coperative with said escapement wheels is a feed dog 50 mounted at the topof a dog rocker 51 piv oted on the machine frame and provided withl a restoring spring 52. The dog rocker is connected-by a link 53\wth an armv 4 fixed to `and projecting rearward from an escapement rock shaft 55 which extend an is journaled in the sides ofthe base. Projecting 'rearward from the roc'k shaft 55 near its ends are crank arms 56 from which depend arms 57 supporting a universal bar 58,? said universal bar underlyinga set' of printing key levers 59 and being operative thereby to cause the feed dog 50 to coperate with the escapement Wheels 48 and 49 to permit leftward letter space movements of the carriage to take place under the pull of a main spring which is contained in a spring drum 60 connected with the carriage truck by a band or strap 61.

The key levers 59 are crurn bar 62 and fulcrumed on a fulare each provided with a lin er key 68 and a restoring spring 64. Eal key lever is connected with an associate type bar by a train of devices coinprising a link G6, a sub-lever G7 and a second link 68. The type bars are `piv'otally supported on hangers 69 circularly arranged and secured to a stationary support 70.

The type bars are adapted to coperate with the front face of the platen through a ribbon 71 mounted on spools 72 which are adapted to be rotated in the usual or any other suitable manner so as to feed the rib- 'bon lengthwise. The vibratory movements of the ribbon are controlled by a vibrator 7 3 through which the ribbon is threaded, said vibrator being connected by the usual or other suitable devices including a link 73a' withan arm 74 fixed to and projecting rearward from the rock shaft 55. The parts thus far described are or may be of the usual .character found in the No. 10 Remington machine. Y n

The machineis'colmected with a source of electrical power such as electric light socket by-wires 75 and 76 which run replate 80 of cured totheirear of thebajse 1 by screws 80, and insulates the contacts '77 and ,78 from the machine frame. As -will be understood from' Figs. 1, 3`and 8, separate magnets and associate condensers'are provided fort-he escapement, the platen shift and the carriage returnv mechanism respectively` and thev machine is so'wired as to enable the current from the contacts 77 and 7 8 to energize one solenoid without a'ectingvthe others. The

circuit is normally open, sets of spring contact devices being provided, one set for each solenoid, the contacts of each set being nor- -mally separated but beingv adapted to be brought into contact to effect the action of the mechanisms with which they are associated, z'. e., the escapement, th'evplavten shift and the carriage return. It will further be understood thatthe solenoidal magnets, condensers and contact devices are or may be ofv any known construction which is adapted to the purposes of my present invention and since these electrical devices in themselves are not of my invention it is not considered to metal contacts 77 and 78 whichl necessary to describe them with any. great particularity.

Circuit wires numbered vSil-and 82 (Figs.

1 and 9) run respectively Afrom thev main contacts 77 and 78 and are connected through Wire 81a with the solenoid 88, and with the condenser 84 through wires 82 and 82h, said solenoid and'condenser being the ones associated with the escapement mechanism. vThe solenoid 83 is vertically disposed and mounted in a rectangular bracket-85 which is suitably. secured to the left-handl side of the'base 1 near its rear, andasseciated with said solenoid is an'armature 86 which in normal inoperative position is dropped down outV ofl the magnet` ield.v` Wires 81b and 82c lead from the solenoid 83 and from the wire 82to spring arms 87 and 88 which are providedwith normally separated contacts proper 89 and 90, the circuit throughthe condenser 84 beinglcompleted' by the wire 81. The contacty devices com-l prising respectivelythe arm 87 and contact 89 and the arm 88 and contact 90 are sepa-1 rated by an insulating plate 91 and are secured by a screw 92 tothe crossarm 93 of a supporting bracket, said screw also serv*` ing to secure Various other devices'to said bracket as clearly appearsin Figs. land 8. Beginning at 'the bottom the screwv 92 passes upward through an insulating plate94', then through a stop arm 95 which carries an adjustable headed stop 96, then through the lower contact arm 87 and the insulating 100 into the cross bar 98.

I screws 103 -to l which-supports the 2 at about the middle of members 106 and 107 plate 91, the upper contact arm 88 and throng a stop arm 97 for the upper contact, said stop arm terminating in an upturned end 98. lNext the Ascrew 92 passes through a narrow insulating plate 99 and then throughan angular support -member in additional screw 101 may be employed to assist in clamping the various layers. vThe member 100- supports an adjustable abutment 102.

he cross arm 93 is secured lat its ends by parallel, arms 104which extend fore and'aft ofthe machine and are secured at their ends by screws `105 to fixed which are comprised 1n the regular tabulating mechanism of the machine. The parallel arms 104 and thel cross bar 93 constitute a-n H-shaped bracket contact devices and their associate contact devices heretofore described the under sideof the machine slightly .forward of the universal bal 58. I; l

The contact devices 87, 89,88 and 90 are controlled by a, tr'pping device or tripper which, as shown in Figs. 1 and 8, :is=pi`voted at 108 to an angular bracket 109 secured at the front of the universal bar 58. The tripper comprises a loosel pivoted de ending arm` 110 which is provided vat its forward side 'with an inclined or cam edge ,111 cooperative witl'i the labutment 102, Riveted at 112 to the arm 110 is a iinger`113 f fiber or other insulatin material, said finger eX- tending downward below the arm110 and normally being contiguous to the rear end of the contact arm89 which projects beyond the upturned endor stop 98. The forward edge portion of thefinger 113 is normali maintained in contact wit'hthe-stop 98 by a coiled spring 114--one end of which is secuiied to the arm 110 andthe otherl end to he bracket 109. "The spring 114 and stop x98 coperate to retain the tripper in normal AAs heretofore stated position as will be seen from Fig. 1'.

the rocker bar is adapted to be moved electrically after the initial movement of the universal bar is received from the hand of the operator acting t-hrougha printing lkey lever to close the circuit. Accordingly the rocker bar is connected with the armature 86 through devices which comprise a'lever 115, said lever having a fixed pivot 116 at the left-hand side of the-base: The rear arm of the `lever 115 is pivot-ally connected lat"1168L to the -upper end of the armature 86. The forward arm df the lever 115 is conneeted by an upright link- -117 with the left-hand crank arm 56 forward of thev arm 57. ln order 4"to" afford ldst motion bet-w'een the crank arms 56 and the arfms' the rear ends of the .arms 56 are forme with slots 118 with thelower endsjif wxich-the hooked ends of the arms 57 normallyfengage, said 'about the pivotal center 108 .parts will return to placed in any other suitable position. Suppose that one of the printing keys be operated.

As soon as the actuated key lever 59 contacts with the top of the universal bar 58, downward movement of the universal bar will begin and corresponding movement of the tripper 110, 113 will take place. A very slight extent of downward movement of the latter will cause the finger 113 to depress the flexible arm 88 and bring the contact 90 into engagement with the contact 89, thus closing the electric circuit and energizing the solenoid 83 which will ull the armature 86 upward. The upwar movement of the armature actuates the. leverl 115,- causing the forward arm of the lever to pull down on the link 117, the link acting through the left-hand crank arm 56 to rock the shaft 55. By reason of the lost motion at the slots 118, the rock shaft 55 may move ahead of the universal bar, and through the crank arm 54: and link 53 may operate the dog rocker 51,',causing the dog 50 to disengage from the escapement wheel 49 and engage with thel escapement wheel 48. The abutment 102 is so adjusted that it will act against the cam edge 111 to force the tripper rearward so as yto cause the finger 113 to `slide oli' thearm 88, releasing t-he latter and permitting it through y ,its inherent springiness to swing backward to normal position against the stop arm 97, and. also permitting the arm 87 to swing back against the under side of the headed stop 96. As soon as the arm- 88 is released, the. contacts 89 and 90 will separate, thus breaking the circuit and denergizing the magnet whereupon the armature 86 will drop out of the solenoid and the connected normal position. It will be observed that such that except for very slightinitialmovement communlcated to the `universal bar by the operators finger, the movement downward offfthe universal bar and the movements of the eseapementdevices control/led .thereby are electrically actuated while the return movement of4 these parts is aecomplished by gravity and the restoring spring 52. The finger of the operator is thus rethe construction is lieved of a considerable portion of the work' t and the touch is correspondingly lighiened.

l-rnoLher words. instead of having to actnale, tl1c"t v1)e bar mechanism and the eseapeinent devices as heretofore. the operator is practically relieved of the work of operating the escapemcnt, leaving him only the type bar mechanism, including the actuated key lever and the connected type bar to operate,

while receiving the aid of the escapement.

spring to return the type bar tov normal' position. t

As heretofore stated, I also provide for shifting the platen electrically.- The solenoid and associate lcondenser provided for 'this purpose are respectively numbered 121 and 122. The solenoid 121 is horizont-ally disposed having a slight upward and rear' ward inclination as shown in Fi s. 1 and 4 and is supported on a rectangu arA bracket 123 which is secured at the left-hand side of the base 1. lThe armature 124 of the solenoid 121 Ynormally stands forward and downward out of the magnetic iield ,(Fig.

1) and is connect-ed by aA link 125 with the.

lower end of a pendent arm orv lever 126. As seen in Fig. 6 the lever 126 is off-set leftward and at its upper end is provided with' a hub 127 which receives a fulcrum screw 128 supported in the left-hand side of the base 1. The lever 126 is adapted to cooperate at its rea-r side below its fulcrum with a roller 129 mounted on the left-hand stud 35 which projects laterally outward beyond its support. The construction issuch that when the solenoid 121 is energized the armature 124` is dra-wn in as shown in Fig, 4, operating to pull the lever 126 against the roller 129 and thereby swinging.

the frame 31, 34 on the rock shaft 32, shifting the platen. In order to make and break the circuit through the solenoid 121, contact devices are provided comprising flexible arms 130 and 131 on which are respectively mounted contacts proper 132 andf 133.

As shown in Fig. 1 the cont-act devices are.

secured by screws 134 to the upper and lower sides of-a support 135 of fiber or other in'- sulating material, said support being mountf yed on the bracket 44. The contacts proper 132 and 133 are normally separated .asf

shown in Fi 1, and as shown' in 9 wires 81d an 82l are adapted to completef the' circuits through the associate solenoid and condenser. Ainger 136 of ber or the like is secured to the left-hand lever 36 andl extends downward therefrom, its lower end or tip being contiguous -to the upper flexible contact arm-131 so that when a'slight., initial depression is giveiithe [left-hand v`shift key 37 the'finger 136 will pressdown the arm-131 and bring the contact'133 intoEAV engagement with the contact'132, cloysinI the ,circuit -and energizing the slenoid'l which will actas heretofore describedto draw in 'the armaturev 124 and operatejtheplaten shifting frame to elevate the"platfei'i` to uppercaseposition.V It will be under-'.-

stood that'when the left-hand shift isv depressed initially the j left-hand lever i36 will swing downward ou its,pivotal axis 35 without affecting the member 34, 'owing to ldevices and' t ymal position.

the fact that the usual screw 39 is dispensed. with at the left, resulting in a consequent yielding of the spring 38 to permit of the independent movement of. the lever 36. This independent movement of the lever is sufficient to bring the contacts132 and 133 into engagement and close the circuit. I As a result substantially the entire platen shift-- ing movement is electrically actuated. After the slight initial depression the operator may release the lever 36wliicli re- .turns to normal position against a stop lip 44a on the bracket 44 under theimpulse 0i. the spring 38. This return movement ofthe lever will break the circuit and denergizethe solenoid 121. Mechanical ,locking devices are provided to lock the platen automatically in upper case position after itas been shifted as described, said locking de-H vices coperatingwitha nose or projection 31 integral with the left-hand lever 31 and extending rearward therefrom back of the pivotal point 30. The locking .devices comprise a bell crank lever 137 which is pivot` ally supported 4at 138 on a bracket 139 xed to the upper edge of the left-hand side of the base 1,'and may be retained in normal position by a spring (not shown). -Onearm .y

of the bell crank 137 'hangs downward nori mally inside the base 1 and somewhat. t0 the ,right of the left-hand side thereof, this depending arm terminatingl inl al hook 1'40 which is adapted toicoperate with the un der' side ofthe' nose 31.. VThe other arm` of the bell crank 137 inclinesfforward 'and downward and terminates in an angularlya` disposed lip 141-which is adapted to cop` crate with-an adjustable screw 142 sup ported on a crank 'ar-ni 143 fixed to the rock f 'shaft 5'5 near its left-hand end and inclin ing upwardand rearward therefrom.' The normal position of the locking devicesV isl shown in Fi 1 from which it will be ob served that t e nose 31*A is normally below the hook 140 while' the screw 142 is slightly above 'the lip l141. `When the p laten `is shifted upward as heretofore described, the

nose-31* will swing upward around the 'p'.ivota'l axisr 32, .acting against the underpinclined edge of .fthe hook 140,-camming the bell cran-k sl'` litly rearwardv until the nose' p A swinsl-pst tie hook; 'whereupon thejhook u lwill op in inder the nose as shown in Fig.

*4, thus 'serving to lock the nose and con-f v 'neeted parts, including the platen,`1n"upper ,Gase position. The locking'devicesjinay iter the yplaten .has been locked as described tliefoperatin of one of duplicated at theright.

automatically to, junljoek 'the loc `Sinaai `and isoL l, 142 attached to the rock shaft 55 against the l lip 141. When a fcharacterkey is operated the escapement devices will be actuated as heretofore described and the lshaft 55 rocked, thus swinging thecrank arm 143 rearward, causing the screw 142 to contact with the l lip 141 to actuate the lbell crank 137 swing- `ing the hooked arm thereof rearward and causing the hook to disengage from the nose 31a as shown in Fig. 5, thus unlocking the connected parts. By this means the operation of -a key mechanicallyl restores the platen. to normal position' independent of the shift key. i v

The `'electrical circuit operatingito return the lcarriage and rotate the laten comprises.

` wires 81 and 81t and 82 w 'ch connect -the wires leading from the main contacts 7 7 Va 78 to the supplemental 'contacts146and 1 -7 (Figs. 3 and 9). The latter are right angled having horizontallyfdisposed portions and are mounted on a support 148 of fiber or other insulating material secured to the right-hand side-of the base near the front thereof. The circuit aforesaid includes a horizontally disposed vsoleneid 149 and a condenser 150the circuit through the condenser being completed by the wire 81E.v The .solenoid is mounted on a'braaket 151 secured to the upper rear side of the base, and the v I condenser on a bracket 152 similarly secured! vCoperating with the solenoid 149 is an ar-l mature 153 which, as appears from Fig. 3.

is connected by a flexible band or strap 154 with a-cam' member or fusee 155 pivotally supported at 156 on a bracket 152B. Fixedly connected withV the fusee ist-he lower end of a lever 157 which is thus in effect also .pivoted at 156 and extends upward at the rear of the machine having a bend to clear the top plate, as shown in Fig. 1 and termina-t-- ing some distance `above the same. The upper end'of the lever 157 is vconnected by a,

link 158 with the rear arm of a horizontally 'disposed lever 159 pivoted at 160 to the lefthand end of the usual column stop bar 161, said bar being .mounted on angular brackets 162 secured to the truck'bar'7 (Figs. 1, 2,

and 3). Thecforward arm ofthe lever 159 is connected'to the left end of 'a 4link 163 that extends'horizontally lengthwise of the platen and behind the same, 'the rightehand end of said link being pivotedto the rearwardly extending arm of a bell crank 164. The bell crank'is fulcrumed at 165 to 4an arm 166 riveted tothe right-hand bracket- 162`and the forward arm of said bell crank is connected by ,a link 167 to the pawl mem# ber 15.- -Adjustably secured -to-the link 163 is a downwardly extendin stop 168 Vwhich is adapted to co5 erate with a xed abutment vor upstandmg stop plate 3. The sto 168 is adjusted to correspond .with the a justabl/margin stop (not shown) at the front of the machine and in- 169 on the top` vsuch lrelationship with the fixed stop 169 that said stop 168 will contact therewith some two spaces prior to the engagement of the regular margin stops to arrest the carriage in its final position at the-right of the machine to begin a new line. To,render the stopl168 adjustable it is split .as shown in' Fig. 2 to embrace. the vrod or link 163 and the split portions are clamped together by screws 168, the friction serving to retain the stop in adjusted position. To close the circuit and energize the vSolenoid 149 at will, a key170 (Fig. 3) is provided, said key being secured at the top of a stem 171 which bears in a sleeve @n a bracket 172 secured to the right-hand side of the base 1. Below bracket the stem 171 carries ahead 173 of fiber or other insulating material and secured to the lower face of the head is a contact plate 174 which overlies the horizontal portions of the contacts 146 and 147 bu'tis normally maintained separated there- 'frpm byk a coiled spring 175 confined beltween' the key button 170 and the bracketv 172 and surrounding the sleeve thereof. Thev springmounted carriage return key 170 is located at the right-hand side of the regular keyboard where it may be conveniently actuated. I

Supposi'ng the parts to be in the posit-ions shown in Figs. 2 and 3 and that it bel desired to return the carriage toward the right,

the operator presses the key 170, overcoming the spring 175 and causing the contact 174 toengage with the top, horizontal portions of the contacts 146 and 147, thus closing the circuit and energizing the solenoid 149. When the solenoid is energized it will draw inward or'towardI the right the armature 153, and the movement of the armature will be transmitted through the band 154 and fusee 155 to'the lever 157 and thence through the link 158 to the lever 159. The

friction in the train of lineV spacing devic opposes a greater resistance to the pull of the link 158 than does'the bodily rightward movement of the carriage, and as a 'result the lever -159 will not turn on its fulcrum to pull the 'link 163 leftward but will instead be maintained in its normal position on its fulbrum, operating in effect as a member fixed on the carriage and transmitting theV pull ofthe link 158 to the carriage which will consequently-be moved bodily toward the right until Aarrested by the margin stops. Two spaces before this arrest takes place the Contact 168 will engage with the fixed contact- 169 resulting in a leftward longitudinal movement of the link 163. turning thc bell crank 164 and causing the link 167 to operate the line spacing pawl 15 to turn or` rotate the platen a line space distance, the momentum with which .the contact 168 strikes the fixed Contact 169 overcoming the friction of the train of line spacing devices.

- the dog rocker on which the same is mount-- imams' This line spacing operation brought about by the co-action of the devices 168 and 169 also serves in effect to cushion the carriage so that it will be arrested without undue jar and shock. On releasing the key 170i" the circuit will be broken and the solenoid 149 denergized, so thatthereafter during letter space'leftward movements of the carriage the lever 157 twill, under A.the pull of .the link 158', swing leftward on its ifulcrum,

drawing out the armature 153 leftward from the solenoid.

By Amy'present invention I accomplish practically 'allthat can be obtainedby the application of extraneous power, electrical or otherwise, to a typewriter, since -the printingkkeys must be operated in any case and must have substantially the'same kind of action as operators have been accustomed to heretofore.

By employinv my invention the act-ion of the keys is ma `e` light and easy, practically no morepower being required 'than to'- operate the type bar alone while the character of operation' isl not substantial-ly altered.

lifurthermore, the operator being relieved of It willb'e lobserved that by invention'I provide escapement devlces in combination with a universalbarand lostmotiony connections' between said universal bar and certain of said escapement devices, in the present instance the feed dog 50 and ed; V thatr `in the present instance the lost motionfconnections are mechanical connections' between theuniversal bar and a member or rock shaft, `the rockshaft'bein provided with slotted crank arms whic are engaged by arms that support the universal bar, the slots in the crank arms affording the lost motion connection bet-Ween the member orrock'shaft and the universal bar; that connected with the universal bar is a source o'f powenin the present instance an" electro or solenoidal magnet; that the member or rock shaft is operative or movable by a set of connectionsto 'the universal bar and also by azsecond set of connections which lccnnect to the source of power or electromagnetic, devices; that said member or rock shaft is initially movable by the first set of connections from-the universal bar, 'and is thereafter movable bythe second set of connections `inde endentlyof the first set of connections; t at the universal bar is operated by key levers; that the key levers in the present instance vare connectedto ty e bars; that the universal bar operates la evice which energizes an electro-magnet; that in the present instance said device is pivotmy present ated after the shift effecting" ally supported on the universal bar; that said device is operative to closethe contacts of an electric circuit containing the electromagnet, thereby energizing the magnet; that 'the' device aforesaid -isx trip ed'to release the contacts and open the circuit; that the means for tripping the device comprises a fixed"- abutment which. coperatesfwlth the device to produce a camming action thereon; that the member or rock shaft aforesaid isfirst movable manually through the universal bar; that thereafter vin the course of opera-` tion .the rock shaft is movable electrically, andnear the end of this electrical movement. the rock shaft picks up the universal bar per to'break the circuit and denergize the electro-magnet; that instead of obtaining independent movement of the universal bar by a lost motion connection Withthe rock shaft, the universal bar may be entirely disconnected from `the rock shaft; and that in fact a separate independent universal bar may be employed to close the electric circuit.

Further it will be noted that by my present invention a platen and a set of type bars are provided, these elements beingrela-l` tively shiftable to change case and being combined with electrical devices for 4effecting such relative shift; that, mechanica-l devices are provided for lcking the shifted element after it has been shifted; that the locking devices operate automatically; that means are rovided for unlocking the lock;

that the un ocklng means is also automatic;

Vthat inthe present instance the unlocking means or means for freeing the shifted ele-` ment from the lock is operative from the printing keys, the rst printing key actuautomaticallythe unlocking of theA shift element; lthat 8o in-turn and moves 1t -so as to cause the tr1p' a manually operative shift key is provided in combination with a circuit containing an electro-magnet and provided with contact devices, saidcontact devices being normally se arated and being controllable from said shift key;I that the devices for effecting the relative shift between the t-ype bar and platen elements comprise a lever; that a lock coperates withsaid lever after itis shifted; that the'lock operates independently of the electricalV means which in the present in stance are provided for effecting the shiftg vthat the shift lock is unlocked by devices operating independently of the electrical means; that the shift locl{ opc1ates in the present instance to retain the shifted ele* ment in shifted position after the electrical shiftin devices have been deuergized; that the shi lock is unlocked in the present instance byl printing keys which also perform their unlocking function after the electrical shifting devices have been donergizcd. Also it will be seen that by the present in vention there are provided in combination akey controlled electra-magnet is provided for moving the carriage in the opposite direction against thespring motor. A

Various changes may be made in my in` '-vention'without departing from the prin-f ciples and spirit thereof and parts of the invention may be employed without other parts. l -For example, although I have illustrated and described a machine which em'- bodied my novel escapementmechanism as well` as my novel platen shifting and carriage returning mechanisms, it will be understood that each or any of these several mechanisms may be employed separately and entirely apart from the other novel mechanisms. f

What I claim as new and desire to secure by Letters Patent, is t f 1. In a typewriting machine, the combi-v nation of escapement devices, a universal bar, keys `.for actuating said universal'bar, `lost motioneonnections between said uni- .versal bar and certain of said escapement ac devicea actuating` devices separate from said keys but operative during the stroke thereof, and connections between said actuating devices and certain of said escapement devices. a 2. In a typewritmg machine, the combination with escapement devices including a 'dog rocker, of a universal bar, keys operative on said universal bar, mechanical lost motion connections between said universal bar` and saidk dog rocker, actuating devices separate from said keys but operative dur.-

K ing the stroke thereof, and connections bei tween said actuating devices and'said'dog rocker. y

3. In a typewriting machine, the co1nbi'V nation of escapement devices, .a rock 'shaft connected to certain of said escapement de-4 vices, a universal har, keysioperative on said universal bar, mechanical lost motion connections between said universal barand said rock shaft, actuating devices separate from said keys but operative during the stroke thereof, and connections between'said'act-u ating devices and said rock shaft.

uco

4;. In a typewriting machine,vthe Vcombination of `escapement devices, a rockshaft connected to certainof saidescapement 1devices,a universal' bar, keys v operative on said universal han mechanicall 'lost ymotion connections between said nniversalflbai 'and said rock'shafnactuati'ng devices' separate from 'said keys, and connections fbetwebn' said actuating devices and said lrock shaft. h '5. In ajtypewritingmachine, the combiconnected to certain of said escapement devices, a universal bar, keys operative on saidv universal bar, mechanical lost motion connections between said universal bar 'and said rock shaftactuating devices separate from said keys, and connections between *said actuating devices and said rock shaft, said actuating devices being brought into operation by a preliminary actuation of said keys.

6. In a typewriting machine, the colnbination of escapement devices including a dog rocker, a rock shaft, a crank arm fixed thereon, a link connecting said crank arm with said dog rocker, slotted crank arms fixedi'to said rock shaft, arms engaging the slots in said slotted crank arms and depending therefrom, a universal bar supported by said depending arms, linger keys operative on said universal bar, actuating devices separate from said finger keys, and connections between said actuating devices and said rock shaft. v

7.. In a typewriting machine, the combination of a carriage, escapement devices including a dog rocker, a rock shaft, a crank arm xed thereon, a link connecting said crank arm with said dog rocker, slotted crank arms fixed to said rock shaft, arms engagin the' slots in said slotted crank arms an depending therefrom, a set of key 'levers which said universal bar underlies,

printing instrumentalities connected to said nation of escapement devices, a keyoperated funiversal bar, lost motion connections between said universal bar ,and certain of said escapement devices, and an electro-magnet also connected to said escapement devices.

9. Ina typewriting machine, the' combination of escapement devices, a key controlled universal bar, mechanical connec- Itions between said universal bar and certain of said escapement devices, and a source of 'power connected to nections.

l0. In a typewritifng machine, the combination of escapement devices', a key con-. trolled universal bar, a source `of power brought into operation by the action of said .universal bar, and connections between said source of power and said escapement devices.

11.' In a typewriting machine, the combination of escapement devices, a key confftrolled luniversal bar, a source of power brought into operation by the action of said universal` bar, connections between 'said source ofpower and. said escapement devices, and/meansfQr disconnecting the said nation o'f escapement devices, a rock shaft said mechanical controlled universal bar, a member connected to trolled luniversal bar, a member'jconnected universal bar, a source ofpower, a secon set of power connected to said member, and e ,nation elli ..nation of escapeinent devicesffa' rock shaft',`

universal bar connected tocer-tainqpf and said member, said memberinv@ vice Acuit containing an electro-.magnet vConnected 12. In a typewriting machine, the coinbi-V nation of escapenient devices, a key con-f certain of saidescapement devices, a set of connections between said member and Asaid universal bar, a source of power, a second set of connections between said source of power and said'inember, and meansfor affording movement ot said mem-ber under the operation of one setcf connections iin-v dependently 'of said otherset. .f f 1, 13. In a typewriting machindthecjombi nat-ion of escapement devices, a key'operatedf.

devices, .electro-magnetic devicesyandineens for energizing said electro-magnetieliiev under the actuation of said uniyersalgbnr and for thereafter operating said escapeinent" devices by said electro-magnetic-.devices in dependently of said universal bar.v f

14. In a typewriting mach'ne, thefcombination of escapeinent dev iCeSa l 3 y coi1 v to certain ofv said escapement devices',l a set Aof connections between saidiniember and aidv of connections between said soiirceop'cvver able initially by said first set of connections and being thereaftermovable independently o'f said first set of connections by 'said second; sety of connections.

15. In atypewriting machine, the coin 1- 1 nation of escapement devices, a key coi'i- 1 trolled universal bar, connections including a member between saidiiniversal bar and. .certain of said escapement devices, a so'iirc 1.7. In a typewriting macbineytlief combiconnected to certainofsaid escape'mcnt devices, slotted crank arinsf'oii said rock shaft, arms dependingyfrom the slots in 'said slpttedl crank arms, anniversal, bar carriedby saifd" arms, printingkey levers operative on said universal bar, a normally'm'pen electric cirf" to said rock shaft-,rand ajdevice operative` by said universal bar for closing said circuit and energizing said magnet.

18. In a typewriting machine, themcombi ',j,l.9.` Illu-'8L nationofescapement devices, a key operated `perate'djby s aid universal bar for closand meansoperating automatically to trip saidk device to open said circuit.

'with.nqrinallylseparated contact devices, an

* "unive the circui contact devices,`

,23. In a typewriting imove said member, the. const'rction nation of escapement devices, a key operated universal bar connected to`certain of said escapement devices, anormally open electric circuitl containing an electro-magnet conneet-'ed 4to certain of said -escapement devices, and a device operative by said universal 'bar for closingsaid circuit'and energizing'said lmagnet.

typewriting machine, the combiuniversal-bar, a normally open electric cir- "nli-ainingan,electro-magnet connected o ei-'tainl of's'aid escapement devices, 'a de- ,insa v ci'icu'it andenergizing said magnet, 80 ,means o'rjrendering said device -inopfnationofescapement devices', av key operated universal-benl anormally lopen electric cir- ,cuit .containing anelectromagnet connected' lto certamof saide'scapement dev1ces,a trip- V"ping device operated by said universal bar -r fc'l esfing said. v'circuit and energizing said '121.1111521.typewritin machine, 'the combi- "natio'n of lescape'inent', evices, .a key Aoperated universali-bar,- van electric circuit providedf .f '95V electro-magnet in said circuit and connected v .to certainof 'saidescapement devices, a tripping device'ope'rative by -saiduniversalbar to bringfsaid 1 contact devices into engage` ment{.to1clos e" said'circ'uit, and an abutment iii-the path fjof 'said triPPng'fdevice to .triptlefsaii'fafrd ieeisaid Contact devices. .22v In a typewriting machine, thecom bi 'scape'n'i'ent devices, a key opera`te`d al ar, normallyjseparated electrical contact. e' ces *flaspring-pressed tripping-n device'p' all supported on'f'said Auniversal bar and-iopefativeby said inniverjsalbar t'oll tocam said-tripping device/fte release said machiiid; the 'coin'- bination-of type bars, manually controlled key. 1eversconnected 'tosaid typel bars', es- 115 c apement devices, a -member connected to i f 'certai'nof said sapement devices, a universal bai-' having a lost motionconnection jwith said `member andmovableby .said .ke

levers? an delectro-niagnet connected- 'to 120 memen'and means controlled by saidunii versal `bar for energizing said magnettov einor lvsiel'i'."=that;` the .universal bar'inay first come;

muni/cate; .movement -to s'aid'inemb'er and 125" 'sbseqiicntlyfsaid--member .after the magnet Li'sfenergize ma eonimunicate'inoveinent to said universal ar. v

'- 2 2'4, In a typewriting machine, the combin nation of escapement devices, al vmember .te anda ffi'xed "buti'nent operative 110l connected thereto, bar connected with magnet adapted to be energized-under coni` nation with a platen and ty trol of said universal bar, and connections .between said member and said magnet, said member after the magnet has been energized being adapted to move said universal bar to break vthe circuit and denergize said magnet.

25. Ina typewriting machine, the combination of type bars, key levers connected to actuate 4the same, escapement devices, an electro-magnet, -and mechanism operative by said key levers to actuate said escapement devices by energizing said magnet during the depression of any key lever and by subsequently denergizing'said magnet during the depressionof said key lever, said type bars being substantially manually operated andv said esem-ement devices being substan tially electrically operated.

26. In a typewritmg machine, the combination with a effect-ing such'relative shift, and mechanical devices for locking .the shifted element in Ishii ted position after the release of the shift rey. a

27. Ina typewriting machine, the combic bars which elements are relatively shiftable 'to change case, of key controlled electrical devices for effecting such relative shift, and devices operating automatically to lock the shifted element in shifted position after the release of the shift key.

28. In a typewriting machine, the combination with a platen and t pe bars which elements are relatively shi able to change case, of key controlled electrical devices for effecting such relative shift, and a mechanical l'ock operating automatically 'to retain the shiftable element after tlie release' of the 'shiftkey 29. Ina typewritingmachine, the combi-4 nation with a platen and type bars which elements are relatively shiftableto change case, ofkey controlled electrical devicesI for effecting such relative shift, mechanical devices for locking the shifted element-in shifted position after the release of' the shift key, and means for automatically unlocking said lock.

- 30. In a typewriting machine, the combination with a` platen and type bars which elements are relatively shift-able to change case, of key controlled electrical devices for effecting such relative shift, a mechanical lock operating automatically to retain the shiftable element .in shifted position after the release of theshift key, and means for releasing said shifted element from said lock.

one ofthe t platen and type bars, which" elements are relatively shiftable to change case, of key controlled electrical devices for from said shift key,

in `shifted positionV 31. In a typewriting machine, the combination with a platen and type bars which elements are relativel shiftable to change case, of key 'controlledy effecting such relative shift, ay mechanical lock operating automaticall to retain the shiftable element in shifte position after the release of the shift key, and means for releasing saidshifted element from said lock, said last named means operating automatically. v

32. In a typewriting machine, the combination with a platen and type bars which yelements are relatively shiftable to change case, of key'controlled electrical devices for effecting such relative shift, a lock operating automatically to retain the shiftable element in shifted position after the release of the shift key, andl means for releasing said shifted element from said lock, said last named means operating automatically when ype bars is actuated subsequently to the locklng operation.`

33. In a typewritin machine, the combination ofa platen an ty e bars which elements 4are'relatively shifta le to change case by devices including a manually operatincV shift key, of an electro-magnet containe in a circuit having contacts controllable connections between the armature of said magnet and said devices, and a lock coperative with certain of said devices to retain the shiftable element in shifted position independently of said shift key.

34. In a typewriting machine, the combination of a platen and type bars which ele-` ments are relatively shiftable to change case by devices including a manuall operating shift key in the key board 0f txe machine, of an electro-magnet contained in a circuit said magnet and said devices, and an automatically operating lock vnormally inoperative but coperative with certain of said deelectrcal devices for vices to retain the shiftable elementin shifted position.

In a typewriting machine, the combinatlon of a platen and type bars which elements are relatively shiftable to change case by devices including a shift key in the key board of the machine, of an electro-magnet contained in a circuithaving contacts controllable from said, shift key, connections between the armature of sald magnet and said devices, and a lock normally inoperative but adapted when in operation to retain the shiftable element in shifted position, the shifted element being releasable from said lock automatically by the operation of a printing key.

36. In a typewriting machine, the combination with a platen and tfype hars, which elements arerelat-ivelv shi table'to change case by ,devices including .a lever, of elec- 105 having contacts controllable fromsaid shift key, connections between the.ar1natnre of trical means for operating said devices, said means being controlled by a key, and a lock inoperative prior to the shifting of said' lo trical means for operating saidfdevices, Yand an `automatic lock cooperating with said lever in its shifted'po-sitiomsaid lock op erating independently of said,I electrical means. a l

nation with' aplaten and type' ar elements are relatively shiftah i case by devices. including ...aleve trical means for operating' .sai

means forV lockingfsaidrst 'inaiied lever in shifted position, printing" keys, and means Vcontrol Ied-by the 'printing keys and cop-` eratingfjvviththe otherv arm of said'locking Ilegvei'st :release i the rst named lever v`'from its locked position. f

i '4' 39." Ina` typewriting machine,- the .combif nation with a platenwand type barswliich elements arerelatively shiftablel to change -case by devices includinga lever, of. electrical means for' operating said devlcesfa locking 'lever provided at vonefwa'rm withmeans for locking said rstnamed lever in shifted position, printing keys, ka rock shaft 4said `first named lever.

trical means for operating "saiddevicesQa means l.for lockingsad rst named shifted position, akey controlled-ro 38. In a typewriting machin:

controlled by .said rintin'g keys,and,m eans" on' said rock sha t cooperatingwith-the. other arm of. said locking lever top releafse nation with a platenandtype bars, !which elements 'are relatively shiftable; toy change case byjdevices including a leverfof eleci" locking lever. provided at one anni here, f

magnet, means for energizing said ,magnet -and causing said lever to Vact against aprosame and 4shift the platen, and a lockingv lever engageable With another project-ion on said rocking frame to retain it in shifted position. v

43; In a typewriting machine, the coinbinationof a shiftable platen, devices for shifting the saine comprising a rocking frame,` an electro-magnet normally denergized, agleve'rfpivotedon said rocking frame andconnectedt-With the armature of said .'magnet, means for energizing said magnet vand-causing said lever to act against a pro- `4 j ectioiron' said''ocking-fraine to rock the .xsame-and'shiftthe platen, said means com- Zprising` a spring-pressed :key lever 'ful- YlQQS, locking lever .provided'f .ati one armer-:with

crumed en said rocking frame 'and having vmovement independent thereof to close the electric circuit containing said magnet.

'nation with a platen and type hars, which elements are relatively -shiftable to .change cas'eby" devices including a shiftahle frame, of an electro-magnet containedv india circuit normally open. and havingits-armature con'.- nected to said shiftable frame, and a key in said circuit and energizing said magnet, ysaidikeyoperatingY for they 'purpose 'inde-- pendently of said shift frame@ 'nationwith a platenV and typelbars, which elements are relativelyshiftable to change .an jelectro-magnet contained in a circuit normally openand having its armature con- -nected to said shift frame, akey for closing .-'said circuit and' energizing said magnet, saidy key1 operating independently of said shift frame, and aflock for said shiftframe,

shift frame, anda lock for said 'shift frame,

" theinstantithe latter reaches the shifted p o-` i s itiion,r said lock fmaintaining. said shift -and an arm on said rcckvshaft'oiiperatingfframe in shifted position afterj the release with the: other arm of saidflocking: lever tof.

release said first named lever;

4:1. In a typevvriting machi" E, In a typewriting machine, the combi` na ionfvvith a platen and type bars which jection' on said rocking frame to rock their the k ey. board jof the machine for closing V nation of a shiftable platen', devices -`for, shifting the same comprising .a rockingl frame, an electro-magnet ,normally dener gized, a lever pivot'ed on said rocking frame and connected lwith the armature of said magnet, and means for energizing Asaid magnet and causing said lever'fto act against fa projectiononsaid rocking frame to rock `thegsame andshiftthe platen.

42. In a typewriting machine, the combination of ja shiftable platen, devicesl for v shifting vthesame comprising a rocking frame, an electrosmagmct normally denen and connecte with the armature of said elements arerelativelyshiftable to change caseby .devices including a key controlied shiftahleframdof an electro-magnet contained -in v a circuit normally open andhavitsy armature connected to said shiftable frame, a. lock operating automatically to hold theplaten in the shifted position after the release of the shift key, printing keys, and means `operated by said printing keys independently of said electro-magnet to rendera'id lock inoperative. y

47. In a typevvriting machine, the conibination with a platen and type bars, which' elements are relatively -sliftable to change l case, of key controlled electrical' devices for 44..Inatypevvritingmachine, the combi- Y 145. In a typewriting. machine, the combicase by devices including "a shift frame, 'of v said iockbeing Qntroiied indepeneeany 0f iie cffecf-ing such relative shift, and alock for retaining the shiftable element in shifted posit-ion after said electrical devices have been denergized and the shift key released.

.418. In a typewriting machine, the coinbination with a platen and type bars, which elements are relatively shiftable to change case, of key controlled electrical devices for leffect-ing such relative shift, and an automatically operating mechanical lock for retaining the shiftable element in shifted position after said electrical devices haveA been denergized and the shift key released.

49. IIn a typewriting machine, the com-A bination with a. platen and type bars, which elements are relatively shiftable to change case, of key controlled electrical devices for effecting such relative shift, a lock for retaining the shiftable elements in shifted position after said electrical'devices have been denergized and the shift key released, printing keys, and' devices automatically operated thereby to render said lock inoperative.

50. In a typewriting machine, the combination of a t-raveling carriage, an platen thereon, line spacing devices, an electromagnet, means for energizing the same, con* nections between the armature of said magnet and said carriage, an abutment carried by said connections, and a cooperating fixed abutment, said abutment co-acting during the carriage return to cushion the arrest of the carriage and ei'ect the operation of the lineA spacing devices.

`51. In a typewriting machine, the conibination of a power driven carriage, a: platen thereon, a line spacing ratchet wheel connected with 'the platen, a power ,controlled carriage restoring lever on the frame of t-he machine, a pair of connected levers on the carriage, a connection between one of said levers and the carriage restoring lever, a line spacing pawl coperative with said ratchet wheel, and a connection between the other of said pair of levers and said pawl.

52. In a typewriting machine; the combination of a power drivep carriage, a'platen thereon, power mechanism for returning the carriage, a lever on the carriageconnected with said power mechanism, a second lever Copies of thi's patent may be obtained 'for on the carriage, a rod connecting said levers,

anda line spacing device coperative with the platen and connected to said second lever. V

53. In a typewriting machine, the'combination of a power driven carriage, a platen thereon, a line spacing ratchet wheel connected with said platen, power mechanism for returning the carriage, a lever on t-he carriage connected with said power mechanism, a second lever on the carriage, a rod connecting said levers, a line spacing pawl connected to saidv second lever., an abutment on said rod, `and ay cooperating fixed abutment, said abutnien'ts `co-acting during the carriage return to cushion the arrest of the-carriage and effect the line spacing of the platen.

54. Ina typewriting machine, the conibination of a power driven carri-age, a platen thereon, a key controlled electro-mag'-` net,.a carriage restoring lever on the frame of the machine flexibly connected with the armature of said magnet, a pair .of levers on the carriage, one of said levers being conlnested with said carriage restoring lever, a

rod connecting said pair of levers, and a platen line spacing device connected with the second of said pair of levers.

55. In a typewriting machine, the combination -of a powerl driven carriage, a platen thereon, an electro-magnet, devices controlled by a key at the front of the inacliine for energizing said magnet a carriage restoring lever on the frame of lthe machine flexibly connected with the armature of said magnet, a pair of levers on the carriage, one of said levers being connected with said carriage restoring lever, a rod connectin said pair of levers, ar platen line spacing evice connected with the second of said pair of levers, an adjustable abutment on said rod and a coperating abutment on the frame of the machine.

Signedat Clayton, in the county af Jefferson and State of New York, this 19th day of August, A. D. 1911.

` BYRON A. BROOKS.'

Witnesses MILo B. HENRY, G. E. MORSE.

lfive cents each, by addressing the Cominissioxier of Patents. Washington, D. C. 

